Metal drilling-rig structure



April 14, 3 R. R. 81.0% fi,,'$@ %2 METAL DRILLING RIG-$TRUCTURE Original Filed July 14 1934 2 sm mmgp m l ATTORNEY.

April 14, 1931- R. R. BLoss METAL DRILLING RIG STRUCTURE Original Filed July 14, 1924 2 Sheets-Sheet 2 INVENTOR.

Q M G 6 A TTORNEY.

Patented Apr. 14, 1931 RICHARD B. Moss, or COLUMBUS, OHIO METAL DRILLING-RIG srnuo'rnnn Original application tiled Ju1y14 1924, Serial No. 725,897. Divided and this application filed May 27,

1927. Serial No. 194,800.

My invention relates to a metal drilling rig structure and, more particularly, to the provision of a sand reel supporting structure that is adjustable to support different sand reels regardless of the length of the sand reel with the supplying of drilling rigs to theuser. i Obviously, the varying lengths of the sand reel shaft is notofsuch vital importance in wooden structures wherein the supporting structure may be readily altered, by cutting,

upon thejgroundwhere the rig is to be assembled. However, such variations be come of vital importance in metal drilling rig structures for the reason that metal parts cannot be readily cut to size upon the drilling rig site and, clearly, it would not be feasible to maintain a stock of various sized parts.

This application is a division of my copending application, Serial No. 725,897, filed July 14, 1924, steel drilling rig structure.

The primary object of my invention is to provide a sand reel supporting structure wherein the sand reel supports are adjustable in such a way that the sand reel may be adapted to any rig structure regardless of the length of the sand reel shaft or the number of friction pulleys mounted thereon.

Another object of my invention is to provide a bearing means for accommodating the varying lengths of sandreel shafts and for ensuring the proper alignment of such shafts. Still another object of my invention is the provision of a sand reelsupporting struc ture that may be adjusted both longitudinally and transversely of the rig in such a way that it may be readily adapted to any rig structure in the field, regardless of the length of the sand reel shaft, diameter of the sand 7 reel friction pulley, diameter of the band wheel, or regardless of the number of pulleys mounted on the sand reel shaft.

Other objects of my invention will appear in the following detailed description and the preferred embodiment of my invention will be seen in the accompanying drawings where in similar characters ofreference designate corresponding parts and wherein Figure 1 is a front view of my sand reel structure showing the tail and knuckle posts mounted to accommodate a relatively long sand reel shaft. i i Figure 2 is a view similar to Figure 1 showing the tail post, mounting and sill moved inwardly along the sand reel sill to accommodate a shorter sandreel shaft than. that shown in Figure 1.

Figure 3 i is a view similar to Figure 2 showing the tail posts in the samejposition as in Figure 2 but showing the brake pulley removed and the manner of moving the knuckle post inwardly to accommodate shortor shafts. s

Figure 4 is a view similar to Figure 3 showing the manner of rotating the swing lever 180 degrees about its own axis to acconr modate various lengths of sand reel shafts.

Figure 5 is a perspective view of the hear ing in which the ends of the sand reel shaft are disposed. l I

Figure 6 is a fragmentary view of the supporting structure for oneendof the sand reel, including the tail post mounting and pivoted tail post and showing the manner of adjusting the tail post about said pivot.

Figure 7 is afragmentary View of the swing lever and knuckle post structure for the end of thesand reeloppositeto that shown in Figure 6 and showing the manner of oscillating the swing lever about the knuckle post With reference to the drawings, I have shown a sand reel structure 1, preferably supportedby means of a sill 2 extending transversely of therig structure, a 'suitable'tail sill 3 and a knuckle sill 4. The sills 3 and lextend longitudinallyofthe rig structure. The sand reel structure 1* comprises the shaft 5, afriction pulley 6 positioned adjacent one end of the shaft 5 and a spooling drum 7 positioned towardtheother end of the shaft.

The sand reel may, if desirechbe provided 1 with a brake pulley 8 (see Figures 1 and 2), which latter pulley is preferably positioned between one end of theshaft 5 and the fricare provided with trunnions 13. The trunnions 13 of the bearing 11 lit in suitable angles carried by a swing lever 14 and the trunnions 13 of the bearing 12 fit in suitable angles car ried by a tail post 15. 1

As shown in Figure 7, the swing lever 14 is pivoted as at 16to the knuckle post: 17 and, as shown-in Figure 6, the tail post--is pivoted to the tail post mounting 18 as at 19.

By mounting the swing lever in such manner,

1 it will be clearly apparentthat the swing lever 14, the swivel bearing 11 and one end of the shaft 5 may be oscillated as a unit about the pivot 16. The effect and purpose ofswinging the swing lever 14 about the-pivot 16 is illustrated in Figure 7 wherein the friction pulley 6 is shown in position to contact with the band wheel 9 and, in dotted lines, in contacting positionwith theback brake 20. I It will also be clearly apparent that, by suitable a'djustment of the turnbuckle braces21 (see:

Figure 6), the tail' post15, the swivel bearing 12 and the end of the shaft 15 may he oscillated about the pivot 19. V

The purpose of providing each end ofjthei shaft- 5 with swivel bearings is to permit the sand reel shaft to be moved forward or backward as a unit and to permit either end of the sand reel; shaft tobe independently adjusted in aplurality of directions without destroying the alignment of' the shaft 5'with the bearings 11 and 12. In other words, as the knuckle and tail posts or their supporting members are adj ustcd, changing the directionof the action of the sand reel shaft, the bear? ings of the shaft are kept in proper relation to: the sand .reel by means of their swivel H a I earned t ereby, saidknuckle post and saidbearings. I m I I The knuckle post 17 is adjustably secured to the sill'4 bysuitable index holes and angles,

asbest shown in Figure 7', and the-lower end of the knuckle post is adjustably secured in the same manner to the sand reel sill 2. "The tail post:15 is adjustably secured to the sill 3 and the sand reel sill 2 in thesame manner, as shown in Figures 1 to '4, inclusive. Thus, as is clearly indicated in the drawings, the

tail post mounting and the knucklepost are adjustable longitudinally of theisills 3 and 4 and, at the same time, the entire structure is adjustable transversely "along the sand reel sill 2p =1 In Figure 1, the knuckle post. and tail post Y various sizes of band wheels ing lengths of shafts.

mounting are shown positioned to accommodate a relatively long sand reel shaft. In Figure 2, the tail post mounting and ,tail

sill 3 are shown adjusted inwardly along the sand reel sill 2 whereby the bearing-12 will accommodate a shorter shaft 5.- v In Figure 3,'the tail post mounting and the tail post 3 are shown in the same position as in Figure 2 but the knuckle post 17 is shown moved inwardly along the sand reel sill 2 to accommodate a still shorter sand reel shaft.

A further adjustment of the swivel bearing 11 longitudinally of the sand reel shaft may be accomplished by turning the swing Y and the drawings ,attac ed hereto, it will be i clearly seen that I have provided a rig struc-v ture which comprises means for adjusting,

the i sand reel bearings longitudinally and singly or as a unit or transversely and independently of-each other whereby such'bear- .ingswillT'not only: take care of the alignmentjof the friction pulleys and spoolmg drums but" may be adjusted to accommodate and, also, varyi Having e qlbed my 7 Iclaimis:

1. Drilling rig structure comprising a knuckle post, an adjustably mounted tail post, an adjustablymounted swing lever, asand reel shaft, swivel bearingsmounted on, said tail post and said swing lever for supporting said sand reel shaft and means for adjusting said swivel bearing into 0 erative position;

on either side vcit-said knuc le post. v

' 2.-Drilli.ng rig structure comprising a I knuckle est, a tail post, a sand reel shaft inonnnn RIBIJDSS.

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